Questions
Which of the following is a characteristic of cell communication that suggests cell signaling evolved early...

Which of the following is a characteristic of cell communication that suggests cell signaling evolved early in the history of life?

A. All organisms form cell junctions to allow transfer of signaling molecules.

B. All organisms produce hormones to carry out signaling processes.

C. Plants, animals, and bacteria share very similar signaling processes.

D. Plants, animals, and bacteria use long-distance signaling molecules.

In: Biology

Describe the general principles of antibody based assays in cohesive sentences

Describe the general principles of antibody based assays in cohesive sentences

In: Biology

Immunology How does Indo1 allow measurement of signaling in real time? What is store operated calcium...

Immunology

How does Indo1 allow measurement of signaling in real time? What is store operated calcium entry and how is it regulated?

If the EF-hand domain was mutated so it behaved like it was always bound to calcium how would this impact signaling?

Give 2 examples of inhibitory receptors that regulate T cell function How does CTLA4 reduce signaling in T cells?

Describe 3 ways that Fas/FasL interactions regulate T cell mediated immune responses

In: Biology

Immunology Describe the two signals needed to activate B and T cells Describe the structure of...

Immunology

Describe the two signals needed to activate B and T cells Describe the structure of a lymph node and relate this structure to the function of the lymph node in concentrating antigen and initiating an immune response.

Explain how an ELISA is used to quantify antibody concentrations and measure an immune response.

Understand how to interpret FACS data including side vs forward scatter, MFI values and multicolor staining profiles Distinguish between how B and T cells recognize antigens.

Describe the 4 mechanisms which contribute to B cell receptor diversity Detail the molecular regulation of VDJ recombination

Describe the formation of SMACs and their role in T cell activation What are ITAMs and what role do they play in the initiation of B and T cell recepetor signaling?

In: Biology

Immunology Describe 2 ways that ubiquitinylation regulates signaling either positively or negatively. What is the role...

Immunology

Describe 2 ways that ubiquitinylation regulates signaling either positively or negatively.

What is the role of guanine nucleotide exchange factors in initiating signaling and what kind of signaling pathway do they initiate?

What is the target of LCK on the CD3 molecule and how does that influence the initiation of signaling when the TCR binds antigen?

Distinguish the roles of SH3 ligands and CD45 in the regulation of SRC family kinases

Explain how PLCgamma is activated and what the outcome of that activation produces.

What three transcription factors enter the nucleus when sufficient TCR signaling occurs and how does that lead to clonal expansion of antigen specific T cells?

In: Biology

Instead of following the incubation directions listed in your lab protocol, imagine that you set up...

  1. Instead of following the incubation directions listed in your lab protocol, imagine that you set up your plates and then left them incubating for over a week before you looked again at them.  What problems could this cause for your MSA plates?  How about for your EMB and MacConkey plates?

In: Biology

Alcohol Consumption Summarize the risks of alcohol abuse. Question 1: What are the risk's for each...

Alcohol Consumption

Summarize the risks of alcohol abuse.

Question 1:

What are the risk's for each of the following when consuming alcohol?

Coronary Heart Disease, Hypertension & Stroke, Muscle, Sexual Functioning, Fetal Alcohol Syndrome, and Immune system?

Please answer the question with each of them, and explain. Thank you very much.

In: Biology

how is the coloration of skin color an "evolutionary balancing act."

how is the coloration of skin color an "evolutionary balancing act."

In: Biology

For each of the following answer choices explain why the specific choice is incorrect or correct....

For each of the following answer choices explain why the specific choice is incorrect or correct. Give a detailed explanation with relevant outside information for your justification of a choice of falsification. Each falsification or justification should be no less than a paragraph each.

The energy released during oxidation of glucose to CO2 and water is high and can produce many molecules of NADH. Why then are only few molecules of NADH made during glycolysis when it appears that many more could be formed?

A. Most of the free energy available from the oxidation of glucose is used in the production of ATP in glycolysis.

B. Glycolysis is a very inefficient reaction, with much of the energy of glucose released as heat.

C. Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis.

D. There is no CO2 or water produced as products of glycolysis.

In: Biology

Which of the following is a chromosome variation important for the evolution of new genes?                        ...

Which of the following is a chromosome variation important for the evolution of new genes?

                        allopolyploidy

                        chromosome inversion

                        Robertsonian translocations

                        aneuploidy

                        chromosome duplications

In: Biology

GPI-AP containing membrane formation as a subcellular localization.... explain how

GPI-AP containing membrane formation as a subcellular localization....
explain how

In: Biology

Understand the Trp and Lac operons

  • Understand the Trp and Lac operons

In: Biology

Which of the answer choices is an example of negative feedback altering homeostatic control? A person...

Which of the answer choices is an example of negative feedback altering homeostatic control?

A person with a bacterial infection runs a fever and his body temperatures rises and stays elevated for several days.
The concentration of salt in a person's urine increases after that person eats a large bag of salty chips.
A person's heart rate remains elevated over the course of a long run.
The production of oxytocin (a hormone) increases in a pregnant woman's body as oxytocin levels in her body rise.

In: Biology

Write a cell balance for a batch bioreactor where microbes are being cultivated. Assuming a constant...

Write a cell balance for a batch bioreactor where microbes are being cultivated. Assuming a constant specific growth rate for cells, derive an equation for time required in the batch bioreactor for the cells to reach as a concentration of X. Assume an initial cell inoculum concentration of X0.

In: Biology

Write a 700-800 word APA format essay explaining the human blood type inheritance. please answer MIN...

Write a 700-800 word APA format essay explaining the human blood type inheritance. please answer MIN 750 words and cite APA format

In: Biology